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aot loader: Add more checks in load_native_symbol_section() (#3559)

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Fix issue reported by Oss-fuzz test (#69675).
This commit is contained in:
liang.he 2024-06-24 10:07:10 +08:00 committed by GitHub
parent 4c2af25aff
commit 95f7717555
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1 changed files with 6 additions and 3 deletions
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9
core/iwasm/aot/aot_loader.c
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@ -660,15 +660,18 @@ load_native_symbol_section(const uint8 *buf, const uint8 *buf_end,
read_uint32(p, p_end, cnt); read_uint32(p, p_end, cnt);
if (cnt > 0) { if (cnt > 0) {
module->native_symbol_list = wasm_runtime_malloc(cnt * sizeof(void *)); uint64 list_size = cnt * (uint64)sizeof(void *);
module->native_symbol_list =
loader_malloc(list_size, error_buf, error_buf_size);
if (module->native_symbol_list == NULL) { if (module->native_symbol_list == NULL) {
set_error_buf(error_buf, error_buf_size,
"malloc native symbol list failed");
goto fail; goto fail;
} }
for (i = cnt - 1; i >= 0; i--) { for (i = cnt - 1; i >= 0; i--) {
read_string(p, p_end, symbol); read_string(p, p_end, symbol);
if (!strlen(symbol))
continue;
if (!strncmp(symbol, "f32#", 4) || !strncmp(symbol, "i32#", 4)) { if (!strncmp(symbol, "f32#", 4) || !strncmp(symbol, "i32#", 4)) {
uint32 u32; uint32 u32;
/* Resolve the raw int bits of f32 const */ /* Resolve the raw int bits of f32 const */